contrib: macdeploy: fix permissions typo in gen-sdk script

contrib/macdeploy/README.md

@@ -58,7 +58,7 @@ previous stage) as the first argument.
 ./contrib/macdeploy/gen-sdk '/path/to/Xcode.app'
 ```
 
-The `sha256sum` of the generated TAR.GZ archive should be `e7ca56bc8804d16624fad68be2e71647747d6629cacaaa3de5fbfa7f444e9eae`.
+The `sha256sum` of the generated TAR.GZ archive should be `df75d30ecafc429e905134333aeae56ac65fac67cb4182622398fd717df77619`.
 
 ## Deterministic macOS DMG Notes
 

contrib/macdeploy/gen-sdk

@@ -95,7 +95,7 @@ def run():
             tarinfo.uid, tarinfo.uname =  0, ''
             tarinfo.gid, tarinfo.gname = 0, ''
             # don't use isdir() as there are also executable files present
-            tarinfo.mode = 0o0755 if tarinfo.mode & 0o0100 else 0x0644
+            tarinfo.mode = 0o0755 if tarinfo.mode & 0o0100 else 0o0644
             return tarinfo
         with cd(dir_to_add):
             # recursion already adds entries in sorted order